Plano ( PLAY-noh) is a city in Collin County and Denton County, Texas, United States. It had a population of 285,494 at the 2020 census. It is part of the Dallas–Fort Worth metroplex.

McKinney is a city in and the county seat of Collin County, Texas, United States. It is Collin County's second-largest city, after Plano. A suburb of the Dallas–Fort Worth metroplex, McKinney is about 32 miles (51 km) north of Dallas. The U.S. Census Bureau listed McKinney as the nation's fastest-growing city from 2000 to 2003 and again in 2006, among cities with more than 50,000 people. In 2007, it was ranked second-fastest-growing among cities with more than 100,000 people and in 2008 as third-fastest. In the 2010 census, the city's population was 131,117, making it Texas' 19th-most populous city. The most recent population estimate, produced by the city as of 2019, is 199,177, which makes it Texas' 16th most populous city. As of May 2017, McKinney was the third-fastest-growing city in the United States.In 2014, McKinney was rated No. 1 by Money magazine as "Best Place to Live" in America.

Frisco is a city in Collin and Denton counties in the State of Texas. It is part of the Dallas–Fort Worth metroplex and is about 25 miles (40 km) from both Dallas Love Field and Dallas/Fort Worth International Airport. The city population was 116,989 at the 2010 census, with the 2020 census placing it at a population of 207,748.Frisco was the fastest-growing city in the United States in 2017, and also the fastest-growing city in the nation from 2000 to 2009. In the late 1990s, the northern DFW suburban development tide hit the northern border of Plano and spilled into Frisco, sparking rapid growth into the 2000s. Like many of the cities in the northern suburbs of Dallas, Frisco serves as a bedroom community for professionals who work in DFW. Since 2003, Frisco has received the designation Tree City USA by the National Arbor Day Foundation. Frisco Independent School District, the local school district, is known for exceptional performance among its students.

Richardson is a city in Dallas and Collin counties in the U.S. state of Texas. As of the 2019 American Community Survey, the city had a total population of 121,323. Richardson is an inner suburb of Dallas. It is home to the University of Texas at Dallas and the Telecom Corridor, with a high concentration of telecommunications companies. More than 5,000 businesses have operations within Richardson's 28 square miles (73 km2), including many of the world's largest telecommunications and networking companies, such as AT&T, Verizon, Cisco Systems, Samsung, ZTE, MetroPCS, Texas Instruments, Qorvo, and Fujitsu. Richardson's largest employment base is provided by the insurance industry, with Blue Cross and Blue Shield of Texas's headquarters, a regional hub for GEICO, regional offices for United Healthcare, and one of State Farm Insurance's three national regional hubs located in the community.